bits: avoid memory leak in case of adding types

src/detect-flowbits.c

@@ -277,6 +277,9 @@ int DetectFlowbitSetup (DetectEngineCtx *de_ctx, Signature *s, const char *rawst
             /* modifiers, only run when entire sig has matched */
             SigMatchAppendSMToList(s, sm, DETECT_SM_LIST_POSTMATCH);
             break;
+
+        default:
+            goto error;
     }
 
     return 0;

src/detect-hostbits.c

@@ -418,6 +418,9 @@ int DetectHostbitSetup (DetectEngineCtx *de_ctx, Signature *s, const char *rawst
             /* modifiers, only run when entire sig has matched */
             SigMatchAppendSMToList(s, sm, DETECT_SM_LIST_POSTMATCH);
             break;
+
+        default:
+            goto error;
     }
 
     return 0;